Engine Upgrade 2017 ppv

Ebutler2200 · Oct 17, 2024

I bought a retire squad, only has about 50k on the body but 16k hours on the motor. So some parts are now failing. Question is what is the largest engine I can drop into it that will fit to the trans/transfer for 4wheel. Probly gonna upgrade trans to the 10 speed if It maintains 4w. Most likely looking to get a short block from the chevy performance site or something of similar. Also would like to be able to make it pass emissions if possible. Its a project truck so looking to build something somewhat rediculous. If it cant pass emission I can register it in a non emo county. thnx

Marky Dissod · Oct 17, 2024

Ebutler2200 said:
What is the largest engine I can drop into it that will fit to the trans/transfer for 4wheel?

No externally physical difference between a 4.8L, 5.3L, 5.7L, 6.0L, 6.2L, 6.6L, or 7.0L.
All the same size on the OUTside, all cast identical shadows.

Ebutler2200 said:
It's a project truck so looking to build something somewhat ridiculous.

You'll get more bang for your buck from slapping a supercharger onto a 6.0L or 6.2L;
both of those are easy enough to find.

Bigburb3500 · Oct 17, 2024

Forgot the guys handle on here but he did a 6.6L with the 6L90.

B-train · Oct 17, 2024

@L8T BURB is the guy. He has good insights abiut his project. His thread was full of good info.

Personally I would just do a 6.6L HD motor and call it a day. I'm currently contemplating that for my 2017 Denali with a 6.2L that bent a pushrod on #4. It's back running again with a new pushrod and oil change. So, depending on what I decide to do with the vehicle, a 6.6L swap may be on my future list as well.

B-train · Oct 17, 2024

@L8T BURB is the guy. He has good insights abiut his project. His thread about his project was full of good info.

Personally I would just do a 6.6L HD motor and call it a day. I'm currently contemplating that for my 2017 Denali with a 6.2L that bent a pushrod on #4. It's back running again with a new pushrod and oil change

L8T BURB · Oct 18, 2024

Do some research on the 6.6 liter L8T engine. It is (in my opinion) the absolute best replacement engine choice for the 2015+ platform. It is the epitome of plug and play. You can reuse your stock ECM, wiring harness, exhaust manifolds, front accessory drive, intake, etc. It can also be paired with the 6 speed, 8 speed, or 10 speed transmissions with no issues. Best part, the 6.6 L8T was made without the terrible AFM/DOD "fuel saving" garbage that causes not only premature lifter/camshaft failure, but undue stress on the transmission.

As for swapping to 10 speed, that's where you'd likely run into some big $$$. I found my swap that had the 6L90 already attached as a package deal. At the time of my swap, the 10 speed wasn't being made with the 6.6.

As of 2024 model year, GM has begun mating the 10 speed to the 6.6 L8T. So a drop out engine/transmission from a 2024 would get you a 6.6 engine and the 10 speed.. but may be quite costly.

I have an extensive build thread here on the forum. Look it over as well if you'd like.

Ebutler2200 · Oct 20, 2024

L8T BURB said:
Do some research on the 6.6 liter L8T engine. It is (in my opinion) the absolute best replacement engine choice for the 2015+ platform. It is the epitome of plug and play. You can reuse your stock ECM, wiring harness, exhaust manifolds, front accessory drive, intake, etc. It can also be paired with the 6 speed, 8 speed, or 10 speed transmissions with no issues. Best part, the 6.6 L8T was made without the terrible AFM/DOD "fuel saving" garbage that causes not only premature lifter/camshaft failure, but undue stress on the transmission.

As for swapping to 10 speed, that's where you'd likely run into some big $$$. I found my swap that had the 6L90 already attached as a package deal. At the time of my swap, the 10 speed wasn't being made with the 6.6.

As of 2024 model year, GM has begun mating the 10 speed to the 6.6 L8T. So a drop out engine/transmission from a 2024 would get you a 6.6 engine and the 10 speed.. but may be quite costly.

I have an extensive build thread here on the forum. Look it over as well if you'd like.

thnx for the info

Engine Upgrade 2017 ppv

Ebutler2200

TYF Newbie

Marky Dissod

Full Access Member

Bigburb3500

Senior Member

B-train

Full Access Member

B-train

Full Access Member

L8T BURB

Full Access Member

Ebutler2200

TYF Newbie

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